Patents Assigned to Optical Corp.
  • Method for manufacturing pyrogen-free collagen gels useful as contact lenses
    Patent number: 4687518
    Abstract: Pyrogen-free collagen useful for manufacturing soft contact lenses is made by performing all manufacturing process steps under aseptic conditions.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: August 18, 1987
    Assignee: Optical Corp.
    Inventors: Teruo Miyata, Albert L. Rubin